Navigating through the murky depths of the Sewers in Resident Evil 2 requires players to solve one of the game's most iconic brainteasers, the electronic chess plug puzzle. Securing all six chess pieces is essential for unlocking the door to the Treatment Pool Room and progressing further into the campaign. Understanding the exact placement for both First Scenario and 2nd Run playthroughs saves valuable time and resources during your survival horror journey.
Locating All Six Chess Plugs in the Sewers
Before attempting to solve the puzzle in the Monitor Room, players must collect all necessary chess plugs scattered across the Sewer area. The Pawn, Knight, and Bishop plugs are already situated in the wall sockets when you first arrive. You will need to explore the surrounding corridors to retrieve the King, Queen, and Rook plugs to complete your set.
Retrieving the King and Queen plugs involves navigating the Supplies Storage Room while managing dangerous encounters with G-Adults. Meanwhile, the Rook plug is located in the hallway leading toward the Treatment Pool Room after using the Sewer Key. Once all six pieces are safely in your inventory, return to the Monitor Room to begin arranging them.
First Scenario Chess Piece Order Solution
For players executing their initial playthrough in Scenario A, the wall clues provide specific hints regarding piece relationships. Facing the main console, the sockets are divided into two distinct sides representing the left and right walls. Following the puzzle's internal logic ensures the door mechanism triggers correctly.
On the left wall, arrange the plugs from left to right starting from the far end as Knight, Rook, and Bishop. On the right wall, insert the King, Queen, and Pawn plugs from left to right. Double-check that each piece aligns with its respective socket slot before activating the lock mechanism.
2nd Run Scenario Chess Piece Order Solution
Players taking on the 2nd Run or Scenario B encounter a modified riddle that alters the placement order completely. The previous arrangement will not work, as the updated clue hints at different positioning rules for the pieces. Paying close attention to the rewritten wall memo prevents unnecessary backtracking.
For the 2nd Run, place the King, Bishop, and Queen plugs along the left wall starting from the far corner. On the opposite right wall, arrange the Knight, Rook, and Pawn plugs in sequence. Once placed correctly, the heavy security door will open, unlocking the path forward to save your companion.
Troubleshooting Common Puzzle Errors and Glitches
Occasionally, players may place every chess plug in the correct order only to find the door remains locked. This rare issue often occurs if key story items, such as specialized weapons, have not yet been collected. Ensuring all necessary story milestones in the Sewers are finished usually resolves any progression blocks.
If you encounter a persistent bug, remove all chess plugs from the sockets and save your game at the nearby typewriter. Reloading your save file and reinserting the plugs systematically often fixes the mechanism. This quick reset saves you from replaying lengthy sewer sections or losing gameplay progress.
